Dec 2, 2020 · Hi all, It's been a while since I've had a 3800 powered car.. I wandered for a few years, after owning four 3800 powered cars in a row. I'm thinking of coming back into the fold, …

Jan 19, 2025 · The familiarization of the 3800 platform is why you're here, not for generic "electronic parts probably failed" guesswork confirmation. I'm not going to zoom in on any …

Mar 8, 2025 · The PCV is now partially external (fresh air draw sode), and the vertical tube near the EVAP mount on the back needs to see pre-throttle blade air to be measured by the MAF …

Mar 9, 2008 · The 3800 mafs are so repeatable that I can damn near nail the WOT tune with one or 2 pulls if I take the time to dial the maf in at idle and part throttle. Let me know when you …

Mar 9, 2012 · 2003 Monte SS, 2005 l67 swap, GenV swapped, 3.3/2.8 mps, 75mm TB, YT 1.8 Rollers, Wizaired CAI, 160 drilled t-stat, TR7IX @ .035", AEM wideband, SLP headers, Corsa …

Jun 15, 2020 · So I got a 97 Buick LeSabre Limited that my grandfather owned since he bought it new. He passed now it’s mine. This is why I haven’t driven it off a cliff. The issue is that when it …

May 31, 2025 · This is a 3800 series II in a project car, has been on the road for a while. This last week it won't idle properly, seems the fuel pressure is strange - engine off - fuel pump brings a …

Mar 17, 2021 · I changed my ignition coils out and put the new ones on and now I have no spark I changed the icm thinking it was that and still no spark so doing some research found out the …

Jan 24, 2008 · The third gen M90 was changed slightly for 1998 (minor changes such as vacuum ports), and then remained the same through 2003 in the same vehicles, all of which came …

Dec 17, 2022 · I own a 2007 Buick Lacrosse w/ 3.8 Series III that I purchased in June. It currently has 44k. The only major problem I am having is that it uses 1 qt of oil every 900 miles. No …